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Suggest two reasons why irrigation is important for human development of the desert (4 marks)

Brian's school locker has a three-digit combination lock that can be set using the numbers 5 to 9 (including 5 and 9), without repeating a number. the probability that the locker code begins with a prime number is %. the probability that the last digit of the locker code is an odd number is %.

Which is a result of the emission from the use of fossil fuel